5.
LoosenthescrewsofpinsA(+),B(-),andGineitherthe'Out'or'In'RS485terminalblock.
Figure 44: RS485 terminal block wire connections
6.
InsertthewireendsintotheG, AandBpinsshownabove.Useoneterminalblockfortheprevious
inverterinthebusandtheotherterminalblockforthenextinverterinthebus,asshowninFigure45.
YoucanuseanycolorwireforeachoftheA,BandGconnections,aslongas:
l ThesamecolorwireisusedforallApinsthesamecolorforallBpinsandthesamecolorforallG
pins
l ThewireforGisnotfromthesametwistedpairasAorB.
7.
ConnectallB,AandGpinsinallinverters.Thefollowingfigureshowsthisconnectionschema:
Figure 45: Connecting the inverters on a bus
8. Tightentheterminalblocksscrews.
9. Checkthatthewiresarefullyinsertedandcannotbepulledouteasily.
10. PushtheRS485terminalblocksfirmlyallthewayintotheconnectorsonthecommunicationboard,
seeFigure43.
11. TerminatethefirstandlastinvertersonthebusbymovingtheterminationswitchtoON(left
position);SeeFigure43.TheotherinvertersonthebusshouldhavetheterminationswitchOFF(right
position).
RS485 Bus Configuration
To connect to the monitoring platform:
1. DesignateasingleinverterastheconnectionpointbetweentheRS485busandthemonitoring
platform.Thisinverterwillserveasthemasterinverter.
2. ConnectthemastertothemonitoringplatformviatheLANoption(refertoCreatinganEthernet
(LAN)Connectiononpage61)oranyoftheotheroptions.
Chapter 6: Setting Up Communication
-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4
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